I'm due on February 15, 2013 and took DayQuil?

Is DAYQUIL COLD & FLU RELIEF LIQUID MEDICINE safe to take while being 36 weeks pregnant? I took the liquid twice in a 24 hour period and I only took the first line dose which is like 15 mg. The OB said it was safe for me to take.

My doc has Vicks cough syrup on the safe list, and it doesn't have phenylephrine, which seems to be the main ingredient to avoid in cough meds. Either way, this far in, two doses of anything probably won't cause much issue.